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Which attribute is used to embed external JavaScript into HTML5 web page?
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STATEMENTS IN JAVASCRIPT
Commands and instructions given to the JavaScript interpreter to take some actions are called
statements and a collection of statements is called a script or a program. Within almost every
browser resides the JavaScript interpreter. We use the semicolon to terminate a statement but, if
the statements are written in separate lines, then the semicolon can be omitted.
JavaScript statements consist of keywords, variables, operators, expressions and comments. Let us
learn about them in detail.
Keywords
A keyword is a reserved word that has a special meaning for the JavaScript interpreter. Some of the
keywords of JavaScript are:
var, switch, let, for, const, function, if, return, etc.
Variables
A variable is a name of storage location. It stores a value that can be modified later. JavaScript is a
loosely typed language which means it does not require a data type to be declared before using it.
Syntax to declare a variable in JavaScript is:
var <variable name> = <value>;
where var is a keyword, <variable name> is a valid name for the variable and <value> is the value that
you want to assign to the variable.
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